In a series of tweets published late Sunday in both French and English, Bernier says he believes promoting too much diversity could have the effect of dividing Canada into ‘little tribes’ that cause division, erode Canada’s identity and destroy what makes it a great country.

“Having people live among us who reject basic Western values such as freedom, equality, tolerance and openness doesn’t make us strong. People who refuse to integrate into our society and want to live apart in their ghetto don’t make our society strong,” Bernier tweeted.

“Trudeau’s extreme multiculturalism and cult of diversity will divide us into little tribes that have less and less in common, apart from their dependence on government in Ottawa. These tribes become political clienteles to be bought with taxpayers (money) and special privileges.”

1/ Trudeau keeps pushing his “diversity is our strength” slogan. Yes, Canada is a huge and diverse country. This diversity is part of us and should be celebrated. But where do we draw the line?

Since the 2015 election campaign, Trudeau has championed diversity as a key feature of what makes Canada strong and has repeated that message in many of his public speeches and comments.

WATCH: Diversity is what makes Canada strong: Trudeau (Aug. 10)

On Monday, Bernier posted two more tweets insisting that he’s not against diversity in Canada, but rather “pushing for ever more of it.”

Bernier, who narrowly lost the leadership of the Conservative party last year, has been a vocal critic not only of the Trudeau government but of his own party’s position on supply management and was stripped of his role as an opposition critic in June.

In his latest tweet, Bernier says, “Something infinitely diverse has no core identity and ceases to exist.”

The comments have drawn sharp criticism from several partisans, including Liberal MP Marc Miller, who called on Conservative Leader Andrew Scheer to clarify whether the party supports Bernier’s views.

Conservative MP Michelle Rempel also took issue with Bernier’s comments. In her own series of tweets Sunday, she criticized both Trudeau for his government’s immigration policy and also “those who make claims that Canada is becoming a ghettoized state.”

WATCH: Maxime Bernier removed from Tory shadow cabinet

“From a political perspective, it’s equally easy to say ‘diversity is our strength, #welcometocanada’ as it is to infer Canada’s pluralism has failed, if neither claim is backed up by data or policy,” Rempel wrote.

“I am so bone weary of watching both sides of this debate be watered down into politically correct, puerile, or flat-out wrong arguments just for political expediency’s sake. All of you who engage in this are cowards.”